排水管道顶管施工应用

结合长沙市新开铺路段排水工程顶管施工的实践经验，总结了穿越铁路顶管施工的技术方案和质量控制要点。     

Development of a competency mapping tool for undergraduate professional degree programmes,using mechanical engineering as a case study

Mapping the curriculum of a professional degree to the associated competency standard ensures graduates have the competence to perform as professionals. Existing approaches to competence mapping vary greatly in depth, complexity, and effectiveness, and a standardised approach remains elusive. This paper describes a new mapping software tool that streamlines and standardises the competency mapping process. The available analytics facilitate ongoing programme review, management, and accreditation. The complete mapping and analysis of an Australian mechanical engineering degree programme is described as a case study. Each subject is mapped by evaluating the amount and depth of competence development present. Combining subject results then enables highly detailed programme level analysis. The mapping process is designed to be administratively light, with aspects of professional development embedded in the software. The effective competence mapping described in this paper enables quantification of learning within a professional degree programme, and provides a mechanism for holistic programme improvement.     

基于Web的面向缝纫机的设计专家系统的研究与开发

本文提出了基于Web的面向缝纫机的设计专家系统.对Web技术应用于专家系统的可行性进行了分析,并介绍了基于Web技术的面向缝纫机的设计专家系统的体系结构和推理机以及知识库的实现方法等.本文在专家系统中应用Java技术来对工业平缝机进行设计,采用基于实例的推理技术,生成满足条件的机构系统设计方案.     

A MICROGAP SURGE ABSORBER FABRICATED USING CONVENTIONAL SEMICONDUCTOR TECHNOLOGY

ＩＮＴＲＯＤＵＣＴＩＯＮＶａｒｉｏｕｓｔｙｐｅｓｏｆｓｕｒｇｅａｂｓｏｒｂｅｒｓｔｏｐｒｏｔｅｃｔｖａｒｉｏｕｓｌｏｗ ｖｏｌｔａｇｅｅｌｅｃｔｒｉｃａｌｃｉｒｃｕｉｔｓｆｒｏｍｔｒａｎ ｓｉｅｎｔｏｖｅｒｖｏｌｔａｇｅｉｎｃｌｕｄｅ :( 1 )ｇａｓｄｉｓｃｈａｒｇｅｔｕｂｅ (ｇａｓｅｏｕｓｇａｐ) ,( 2 )ｖａｒｉｓｔｏｒｓ,( 3)ｓｅｍｉ ｃｏｎｄｕｃｔｏｒＴＶＳ (ｔｒａｎｓｉｅｎｔｖｏｌｔａｇｅｓｕｐｐｒｅｓｓｏｒ) .Ｅａｃｈｔｙｐｅｈａｓｉｔｓａｄｖａｎｔａｇｅｓａｎｄｄｉｓａｄｖａｎｔａｇｅｓ.Ｇａ…     

加强实践环节的铁路线路课程设计探索

线路课程设计是一门综合运用理论和专业知识的实践课程,对工程实际经验依赖性很强。本文分析了目前铁道工程线路课程设计培养现状,论述了加强实践环节的必要性,并开展了加强赴现场模拟踏勘、邀请线路设计专家入校讲解等尝试,以期为类似实践性较强的课程设计提供参考。     

The Reflection-Informed Learning and Instruction to Improve Students’ Academic Success in Undergraduate Classrooms

Abstract

This study addressed the role of the reflection-informed learning and instruction (RILI) model on students’ academic success by using CourseMIRROR mobile system. We hypothesized that prompting students to reflect on confusing concepts stimulates their self-monitoring activities according to which students are expected to review their understanding, search for related knowledge, and try to identify the confusing concepts. With this student-reflection information, instructors can thus address students’ difficulties effectively, which can lead to enhanced academic success. We tested our hypothesis by conducting a semester-long quasi-experimental study in undergraduate industrial engineering classes (N?=?153). The analyses revealed that students in the RILI condition performed significantly better than students in the control condition (Cohen’s d = .82). In addition, reflection analysis showed that both quality and quantity of reflections were significantly associated with exam performance. Surveys indicated users highly valued the RIFI model; they rated CourseMIRROR favorably and said they would continue to use it in future classes.     

纳米科技及其研究进展

综述了纳米材料的特性，制备和应用前景，以及纳米技术研究的进展。     

再论科学技术与人工自然之间的关系

科学技术与人工自然是人创造物,是人类社会生存和发展的基础和根本保证。本文在既往研究的基础上,进一步就它们之间的关系进行了较系统的论述。     

煤炭企业的产业调整应当注重主业的发展

论述了我国一次能源的构成及煤炭在国民经济发展中的地位，指出煤炭企业的产业结构调整，不能忽视主业，应依托科技，提升和发展主业，确保国家能源战略的安全。     

Metaphors we’re colonised by? The case of data-driven educational technologies in Brazil

ABSTRACT

This article discusses issues concerning the spread of data-driven educational technologies in Brazil. Here, as elsewhere, educational technology continues to be promoted optimistically as the bearer of a panacea for historically-rooted social problems. Whilst some of these technologies have indeed contributed to important widening-participation programmes in the last two decades, widespread advocacy of technological ‘solutionism’, reflected in gradually stronger policy demands for efficiencies to be improved through ‘innovation’, has supported a relentless marketisation of the country’s educational systems. As transnational corporations position themselves to take control of key areas of these systems, threatening to restructure the whole sector, data-driven educational technologies provide the latest example in a series of ‘new’ ideas offered in an ever-expanding market. Based on the notion of ‘conceptual metaphors’, which encapsulate specific ways of perceiving, thinking and relating with the world, this article examines key metaphors underpinning discourses surrounding data-driven educational technologies in Brazil. In particular, the article analyses ways in which these specific metaphors may be promoting perspectives that ignore difference and obscure broader questions concerning education, thus contributing to the reproduction of previously existing problems and supporting new forms of colonisation.